1.1 该试验方法类似于热分析技术，建立了确定塑料等可燃材料易燃特性的程序。 1.2 该试验在实验室环境中进行，使用毫克试样的受控加热和试样气体的完全热氧化。 1.3 已知质量的样品在无氧（厌氧）或氧化（需氧）环境中以0.2至2 K/s的恒定加热速率进行热分解。 1.4 试样释放的热量由完全氧化（燃烧）试样气体所消耗的氧气质量确定。 1.5 试样受控热分解或热氧化分解过程中产生的试样气体燃烧释放的热量由耗氧量计算得出。 1.6 测量燃烧热释放的试样温度。 1.7 测量试验后剩余试样的质量，并用于计算剩余质量分数。 1.8 试样应为任何形式的材料或复合材料（纤维、薄膜、粉末、颗粒、液滴）。开发该测试方法是为了促进材料开发和研究。 1.9 本标准用于测量和描述材料、产品或组件在受控条件下对热量和火焰的响应，但其本身并不包括在实际火灾条件下对材料、产品或组件进行火灾危险或火灾风险评估所需的所有因素。 1.10 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 注1: 没有已知的ISO等效于该试验方法。 1.11 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本实验室试验方法测量材料的热燃烧特性( 1- 9 ). 4. 5.2 该试验使用受控的试样热分解和热氧化分解，以及试样气体从试样中释放时的热氧化，分别在小型实验室试验中模拟燃烧的冷凝和气相过程( 1- 9 ). 5.3 测试中测得的热燃烧特性与材料的易燃性特征有关( 4- 9 ). 5.4 每单位质量的材料在燃烧中释放的热量为火灾负荷，潜在火灾负荷（完全燃烧）在方法A中估算为: h c . 5.5 材料的净热值（见试验方法 D5865 )直接使用方法B确定 h c o 无需知道样品的原子组成以校正燃烧产生的水的蒸发潜热，或进行滴定以校正酸性气体的溶液热。看见 表X1.2 用于将微尺度燃烧量热法（MCC）数据与试验方法进行比较 D5865 . 5.6 温度 T 5. % 在加热速率下测量的方法A β = 1K/s近似于引燃点火时的表面温度( 8和 9 )为了进行火灾建模（参见指南 E1591 ). 5.7 热释放能力 η c （J/g-K）是在方法a中测量的易燃性参数，该参数是本试验方法特有的。 5.8 火灾增长能力 FGC公司 （J/g-K）是在加热速率下用方法a测量的可燃性参数 β =1K/s，这是本试验方法独有的。

1.1 This test method, which is similar to thermal analysis techniques, establishes a procedure for determining flammability characteristics of combustible materials such as plastics. 1.2 The test is conducted in a laboratory environment using controlled heating of milligram specimens and complete thermal oxidation of the specimen gases. 1.3 Specimens of known mass are thermally decomposed in an oxygen-free (anaerobic) or oxidizing (aerobic) environment at a constant heating rate between 0.2 and 2 K/s. 1.4 The heat released by the specimen is determined from the mass of oxygen consumed to completely oxidize (combust) the specimen gases. 1.5 The rate of heat released by combustion of the specimen gases produced during controlled thermal or thermoxidative decomposition of the specimen is computed from the rate of oxygen consumption. 1.6 The specimen temperatures over which combustion heat is released are measured. 1.7 The mass of specimen remaining after the test is measured and used to compute the residual mass fraction. 1.8 The specimen shall be a material or composite material in any form (fiber, film, powder, pellet, droplet). This test method has been developed to facilitate material development and research. 1.9 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions. 1.10 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: There is no known ISO equivalent to this test method. 1.11 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This laboratory test method measures thermal combustion properties of materials ( 1- 9 ). 4 5.2 The test uses controlled thermal and thermal-oxidative decomposition of specimens and thermal oxidation of the specimen gases as they are released from the specimen to simulate the condensed and gas phase processes of flaming combustion, respectively, in a small-scale laboratory test ( 1- 9 ). 5.3 The thermal combustion properties measured in the test are related to flammability characteristics of the material ( 4- 9 ). 5.4 The amount of heat released in flaming combustion per unit mass of material is the fire load and the potential fire load (complete combustion) is estimated in Method A as h c . 5.5 The net calorific value of the material (see Test Method D5865 ) is determined directly using Method B as h c o without the need to know the atomic composition of the specimen to correct for the latent heat of evaporation of the water produced by combustion, or to perform titrations to correct for the heat of solution of acid gases. See Table X1.2 for comparison of Microscale Combustion Calorimetry (MCC) data with Test Method D5865 . 5.6 The temperature T 5 % of Method A measured at a heating rate β = 1K/s approximates the surface temperature at piloted ignition in accordance with Ref. ( 8 and 9 ) for purposes of fire modeling (see Guide E1591 ). 5.7 The heat release capacity η c (J/g-K) is a flammability parameter measured in Method A that is unique to this test method. 5.8 The fire growth capacity FGC (J/g-K) is a flammability parameter measured in Method A at heating rate β = 1K/s that is unique to this test method.